Which one of the following acids does not exhibit optical isomerism ?
← JEE Main 2014 · 12 Apr · Shift 1
ChemistrySingle correct+4 / -1Question 57 of 90
JEE Main 2014 · 12 Apr · Shift 1, Chemistry question 57
Answer and worked solution
Official answer: C
Maleic acid, cis-HOOC-CH=CH-COOH, is planar with no chiral centre, so it shows geometrical but not optical isomerism. Lactic acid, tartaric acid and most α-amino acids are chiral.